This bothers ne too. I lost my son 3 years ago to cancer. There’s not an hour of every day that I don’t think of him. Most are good memories others are sad because I miss him so much. There are people in my life that never bring him up to me or ask me how I’m doing. I know they think if they bring up the subject I’ll feel bad or fall apart. But the thing is, I’m always thinking of him. Someone asking about him isn’t going to make me all of a sudden remember that he died. That’s always with me. I WANT people to talk about him and ask me about him or how I’m feeling. I love hearing his name and talking about him. It makes me happy to know that others haven’t forgotten him. That’s my biggest fear - that he’ll be forgotten.
To the OP - my heart goes out to you. My circumstances were very different from yours, but a loss of someone you loved so much hurts and will always hurt. There is nothing that will change that, not even time. That person will not and cannot be replaced. It doesn’t get better with time, you just learn to live with it. It’s a part of your life now.
I’ve had addicts in my life and know that unless they want to make changes and get help there’s nothing you can do. Even if they try, sometimes they just can’t do it. Which is hard for someone who isn’t an addict to understand. It’s very frustrating and sad. You loved her - that was what you did for and it was the best thing for her. Take care.